Pollution

Pollution

Pollution is the negative effect of human activity on the natural environment.

Geography

Keywords

environmental pollution, soil pollution, air pollution, water pollution, pollution, industry, agriculture, transportation, settlement, waste, heating, pesticide, fertilization, crude oil derivatives, air, water, soil, environment, nature, society, geography, biology

Related items

Scenes

  • transportation

  • - Excessively used pesticides and fertilizers seep into the soil and groundwater.

  • transportation
  • - Fossil-fuel power plants emit greenhouse gases, carbon dioxide and sulfur compounds that cause acid rain. For this reason it is necessary to equip power plants with filtration devices and efficient environmental management systems. Chemical industry, crude oil processing and metallurgical industry are also sources of industrial waste.
  • - In animal husbandry, methane is released into the air, which is a greenhouse gas. Excessively used pesticides and fertilizers also cause air pollution.

  • - The nutrient levels of waters may increase due to fertilizers, causing eutrophication. Because of this phenomenon a growth of algae and mosses may be observed in still waters.

Related items

Soil pollution

This animation demonstrates the main sources of soil pollution.

Water pollution

The main sources of water pollution are industry, agriculture and urban areas.

Air pollution

This animation demonstrates the main sources of air pollution: Agricultural, industrial and urban air pollution.

Greenhouse effect

Human activity increases the greenhouse effect and leads to global warming.

Ozone layer

The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for life on Earth.

Thermal power station (hydrocarbon fuel)

Thermal power stations convert energy released during the combustion of fossil fuels or renewable resources into electricity.

Deforestation

Deforestation has a negative impact on the environment.

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A metropolis is a large city with a population of over 1 million people.

Types of soil (soil profiles)

This animation demonstrates different types of soil.

Biogas power plant

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Fusion reactor

Nuclear fusion will serve as an environmentally friendly and practically unlimited source of energy.

Geothermal power station

Geothermal power stations convert energy of hot, high-pressure water found in deeper layers of the Earth into electricity.

House without carbon-dioxide emission

The design and structure of modern houses play an important role in environmental protection.

Nuclear power plant

Nuclear power plants convert the energy released during nuclear fission into electric power.

Sewage treatment plant

Treated sewage water can be used in agriculture and industry.

Solar power station

Solar power stations convert solar energy into electricity.

Wind power station

Wind power stations convert the kinetic energy of the wind into electricity.

Electric car

The Tesla Model S is one of the first commercially available electric cars.

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Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.

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System that satisfies consumers’ demands of water supply, wastewater disposal, electricity, heat and gas supply and telecommunication.

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